Attachment for operating on valve-in-head constructions



A. C. LINDHOLM. ATTACHMENT FOR OPERATING 0N VALVE-IN-HEAD CONSTRUCTIONS. APPLICATION FILED SEPT.29, 1921.

1,43 1,6?8, Patented 001;. W, 19 22.,

' INVENTOR.

ATTORNEY.

simpleyconvenient, compact, and inexpen Patented Oct. 1U, 1%22.

ARTHUR c. melanoma, (51?"fiPRINGFIELD,.;MASSACI-IUSETTS.

ATTACHMENT non ornnlarrne on vanvn-rn-nnan ooivsrnuo'rrons.

Application filed Septeinberj 29, 1921. Serial in. 504,131.

ToaZZ whom may concern:

Be it known that I, ARTHUR O. LINDHOLM, a citizen ofthe United States of America, and a resident of Springfield, in the county of I-lampden and Stateof Massachusetts, have invented a new and useful Attachment for Operating on Valve-in-Head'Oonstruo tions, of which the following isa specification. 1 My invention relatesto improvements in operating means for reseating-tools or cut ters and valveand case-cleaning brushes,

for use especially in connection with the Buick valve-in-head engines, and consists essentially of'a body attachable to the base of anelectric motor, and equipped with additional supporting and leveling means, a shaft carried by said body and capable of instant connection with the shaft of such motor, said. shaft being adapted to have a brushattached thereto, a socket for a cutter also carried by said body, and driving mechanism between said shaft and socket, all as hereinafter set forth.

One object of invention is to provide a sive attachment for easily, quickly, and efiiciently reseating the valve-seats and cleaning the valves and cages of a Buick engine, which attachment can be fixedly'secured w thebase of an electric motor,-and opera tively connected with such motor with the utmost facility, and with equal facility dis connected from the'motor and disengaged from its base. "Thus the attachment, be

comes a valuableadjunct of a portable grinder that includes a bed and a motor rnountedon the same. When mounted on and j connected with such a gr1nder,the attachment is in convenient position for use,

and when no longer needed said attachment 1 can be detached and laid aside out of the liiother objectis to produce an attachment of this, character that is especially designed for and capable of operating on Buick or valve-ln-head engines.

Other objects and advantages will appear in the course of the following descript on.

. l. attain the objects and secure the'ad'van -tages of my invention bythe means illustrated in the accompanymg drawings, in

Figure 1 is what may be termed a, rear elevation of an attachment that embodies a practical form of my invention; Fig. 2, a

detail of the lower portion of the cutter shank; Fig. 3, a side elevation of said attachment, showing the same set and connected. ready for operation; Fig. 4 a bottom plan'of the attachment; Fig. 5, an enlarged vertical section through that part of the body in whieh'the cuttersocket is j ournaled, and through such socket itself, and, Fig. 6, an enlarged side elevation of one of the two brushes used with the attachment, and of a portion of the main shaft upon which such brush is mounted, the head of such brush being broken away to show more clearly the connection.

Similarcharacters of reference designate similar parts throughout the several views.

In Fig. 3, a fragmentary portion of a support or bed appears at 1, and a fragmentary portion, of an electric motor at 2. The motor 2 has a base 3 that rests on the bed 1, and is provided with ashaft one terminal portion of which appears at 4C. Extending into the side of the base 3 over which the terminalportion of the shaft 1 which is shown one of a number that might be employe andthe same thing istrue of the connection between said attachment and the motor base,

of which connection the bolt 6 forms a part.

The attachment" comprises a generally horizontal body; 8, an angular connecting andsupporting rod 9, .a pair of supporting and leveling legs 10, a horizontal main shaft 11,a pinion 12 secured tosaid shaft, a second or intermediate horizontalshaft 18, a gear 14 and a worm 15 secured to said interme- .diate shaft, a revoluble vertical socket 16,

and a wo'rinwlieel 17 secured. to said socket. Vith theattachment are employed a reseating-toolor cutter, such as that represented at 18 in Fig. 1, and steel-wire scratch brushes, of the wheel and-end-thrusttypes,

as represented respectively at 19 and 20 in Figs. 3 and 6. I

A housing 21, for the pinion 12 and the gear 14, is formed on the back of the body 8, and the worm 15 and the worm-wheel 17 are let into the bottom of said body. The body is provided on the under side with a bearing 22 for the shaft 11, and on top with a bearing 23 for the socket 16. The shaft 13 is journaled directly in the body itself.

Depending from the bottom of the housing 21 is a rearwardly-oifset bracket 24. There is a vertical passage 25 through the offset part of the bracket 24 to receive the vertical arm of the rod 9.. Said rod is held in place in. the passage 25 by means of a horizontal bolt 26 tapped into the bracket 24 from the front side thereof and extending into said passage. The bolt 26 affords means whereby the rod 9 may be adjusted.

The rod 9 is arranged with its horizontal arm extending rearwardly, and such arm is adapted to be received in the passage 5 in the motor base 3, and secured therein by the bolt 6. This bolt provides adjustment for the rod 9on a horizontal plane, and assists materially in supporting the body 8 with its parts and members. The rod 9 is so adjusted that, when the shaft 11 is in operative engagement with the motor shaft 4, the body 8 with said shaft is horizontal. The legs 10 are provided to assist the rod 9 in supporting the body in the required horizontal position, and to this end said legs 7 are secured at their upper terminals to lat- .case provided for that purpose.

eral projections 41-41 on the front of said body. lVhen the attachment is in operative position, the legs 10 rest at their lower ends on the bedl. In order to enable the legs 10 to be adjusted vertically commensurate with such adjustment of the rod 9, and to' accommodate themselves to any unevenness in the bed 1, said legs are rendered vertieally adjustable, bolts 2727vbeing in this The bolts 27 are tapped into the outer ends of the projections 41. Each leg 10 is chamfered at the upper terminal, on one side, as represented at 28, to afford a good bearing for the associated bolt 27. y

To complete the shaft coupling of which mention has been made, I provide a head 29 at the rear end of the shaft 11, which head is adapted to fit the recess in the shaft 4, and provide such head with a transverse pin 30, which pin projects at both ends and is adapted to be received in the slots 7 in said shaft 4. When by this means connection is made the shaft 11 is coupled to the shaft 4 and may be driven thereby. Such connection can be made after the rod 9 and the legs 10 have been properly adjusted to support the shaft 11 at the same elevation from the bedl as that of the shaft 4. The

. head 29 then slips into the recessed end of with the slot 7, when the horizontal arm of the rod 9 is inserted in the passage 5. As soon as the shafts 4 and 11 are properly coupled together the bolt 6 is set down onto the rod 9 to secure the same. Upon loosening the bolt 6 the attachment can be moved forwardly to uncouple the shaft 11 from the shaft 4, and then said attachment can be removed entirely.

The pinion 12 and a collar 31 on the shaft 11, at opposite ends of the bearing 22, hold said shaft against endwise movement. This shaft projects forwardly beyond the collar 31, and such projecting part is chamfcred, as represented at 32. The brush 19 has a hub 33 that is capable of being mounted on the forward terminal of the shaft 11, and of being secured thereon by means of a setscrew 34 tapped into and through said hub to engage the chamfered part 32 of said shaft, substantially in the manner disclosed in Fig. 6. Likewise the brush 20 has a socket head 35 to receive the chamfered part of the shaft 11, and the same or a similar set-screw 34 is employed to secure said head to said shaft. Thus either brush can be mounted on the shaft 11 and removed there from with the utmost dispatch.

l/Vith the brush 19 mounted on and driven by the shaft 11, any carbon that may have accumulated on the valves of a Buick engine can be easily and quickly removed; and with the brush 20 mounted on and driven by said shaft, any carbon that may have accumulated on the inside of the cages of such an engine can be easily and quickly removed.

The socket 16 is held against endwise movement in the bearing 23 by the wormwheel 17 which is at the bottom of said socket, and a collar 36 on top of said hearing, which collar is secured to the socket by means of screws 3787 tapped into and through opposite sides of said collar and entering indentations in corresponding sides of the socket. The worm-wheel 17 intermeshes with the worm 15, and is driven slowly but positively and evenly by said worm, the shaft 13, the gear 14, and the pinion 12 011 the shaft 11.. Thus it is seen that the shaft 11, when driven by the shaft 4, causes the socket 16 to revolve.

The cutter 18 has a shank 38 below and a spindle 39 above, a portion of said spindle being broken out in Fig. 1. The base of the shank 38 is angular in cross section, as represented at 40, to fit an angular opening 42 that forms the lower portion of the bore in the socket 16 for said shank.

In practice, when the attachment is in operative position, the shank 38 is inserted in the socket 16, with the angular part 40 in the angular opening 42, and said shank with the cutter 18 is caused to revolve with said socket through the medium of the annaeneve I and detached at will, and the device as a Whole also can be placed in operative position and removed therefrom at will has hereinbeforebeen fully, explained. A

More or lesschange in the size, shape, construction, and arrangement of some or all of the parts of this attachment may be made without departing from the spirit of my invention or exceeding the scope of what is claimed.

What I claim as my invention, and desire to secure by Letters Patent, is

1. In an attachment of the class described, a portable member provided with under neath supporting means, a main shaft car- I ried by said member, said shaft being provided at one terminal with means for coupling the same to adriving shaft, and adapted to have a brush attached to the same at the other terminal, an intermediate shaft parallel with the first and carried by said member, means to drive said intermediate shaft from said main shaft, a revoluble socket caried by said member, and adapted to carry a cutter, above the same, the axis of said socket being at right-angles to said shafts, and means to drive said socket from i said intermediate shaft.

2. In an attachment of the class described,

a member provided with supporting means,

a main shaft carried by said member, and provided at one terminal with means to conple the same to a driving shaft, and adapted at the other terminal to have a brush attached'thereto, a pinion secured to said main shaft, an intermediate shaft carried by said I carry a cutter above the same, and means to drive said socket from one of said shafts through the medium of theother of said shafts.

4c. In an attachment of the class described, a body provided with an angular rod for attachment to a motor base, a main shaft car ried by said body, and adapted to have one and adapted to have one terminal coupled to terminal coupled With a motor shaft, and to have a brush mounted on the other terminal, an intermediate shaft carried by said body, a revoluble socket for a cutter carried by said body, and means to revolve said socket from said main shaft through the medium of said intermediate shaft.

5. Inan attachment of the class described, a body provided with an angular rod for attachment to a motor base, means to adjust said rod in said. bracket, a main shaft carried by said body, and adapted at one terminal to be coupled to a motor shaft, and at the other terminal to have a brush mounted thereon, an intermediate shaft carried by said body, a revoluble socket for a cutter car ried by said body, and means to revolve said socket from said main shaft through the medium of said intermediate shaft.

6. In an attachment of the class described, 85 a body provided with means for attachment to a motor base, and with supporting means to rest on the bed upon which said base is mounted, a main shaft carried by said body a motor shaft, and to have a brush mounted on the other terminal, an intermediate shaft carried by said body, a revoluble cutter socket carried by said body, and means to revolve said socket from said main shaft through the medium of said intermediate shaft.

7. In an attachment of the class described, a body provided with means for attachment to a motor base, and with adjustable sup porting means to rest on the bed upon which said base is mounted, a main shaft carried by said body, and adapted to have one terminal coupled to a motor shaft, and to have a brush mounted on the other terminal, an intermediate shaft carried by said body, a revoluble cutter socket carried by said body, and means to revolve said socket from said main shaft through the medium of said intermediate shaft.

8. In an attachment of the class described, a body provided with an adjustable angular rod for attachment to a motor base, and with vertically adjustable supports to rest on the bed upon which such base is mounted, a main shaft carried by said body, and adapted at one terminal to be coupled to a motor shaft, and at the other terminal to have a brush mounted thereon, an intermediate shaft carried by said body, a revoluble cutter socket carried by said body, and means to drive said socket from said main shaft through the medium of said intermediate shaft.

9 In an attachment of the class described, a body having horizontal and vertical bearings and a housing, and provided with supporting means, main and intermediate shafts journaled in said horizontal bearings, and a cutter socket j ournaled in said vertical bearing, and provided with a worm-gear, said main shaft being adapted at one terminal to be Coupled with a motor shaft, and at the other terminal to have a brush mounted thereon, inter-meshing gears on said shafts in said housing, and a worm on the intermediate shaft with which said wor1n-wheel intermeshes.

10. In an attachment of, the class described, a body having horizontal and vertical bearings, a rear housing and a depending bracket, and lateral extensions in front, an angular rod adjustably connected with said bracket, and adapted to be connected with a motor base, legs adjustabiy connected with said projections, and adapted to rest on the bed upon which such base is mounted, main and intermediate shafts journaled in said horizontal bearings, said main shaft being adapted at one terminal to be coupled to a motor shaft, and at the other terminal to have a brush mounted thereon, a pinion sccured to said main shaft in said housing, a gear secured to said intermediate shaft in said housing and intern'ieshing with said pinion, a cutter socket jouri'laled in said vertical bearing, and provided with a wormwheel, and a worm secured to said intermediate shaft, with which said Worm-whee]. iutermeshes.

ARTHUR C. LINDHOLM.

Witnesses F. A. CUTTER, C. C. WEST. 

